| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used drugs | 1074 |
74.3%
|
| 2 | 7 years old or younger | 66 |
4.6%
|
| 3 | 8 or 9 years old | 37 |
2.6%
|
| 4 | 10 or 11 years old | 58 |
4%
|
| 5 | 12 or 13 years old | 100 |
6.9%
|
| 6 | 14 or 15 years old | 90 |
6.2%
|
| 7 | 16 or 17 years old | 19 |
1.3%
|
| 8 | 18 years old or older | 2 |
0.1%
|
| Sysmiss | 221 |